Android: Default Min SDK to 24 for Vulkan mobile

Users can still go down to 21 when using GL Compatibility.
This makes the default behavior match the default renderer, and thus avoids
a warning in the out of the box experience.

Also mark texture compression settings as basic, since out of the box users
who want to export to Android will need to enable ETC2/ASTC manually.

platform/android/export/export_plugin.cpp

@@ -251,7 +251,7 @@ static const int EXPORT_FORMAT_AAB = 1;
 static const char *APK_ASSETS_DIRECTORY = "res://android/build/assets";
 static const char *AAB_ASSETS_DIRECTORY = "res://android/build/assetPacks/installTime/src/main/assets";
 
-static const int DEFAULT_MIN_SDK_VERSION = 21; // Should match the value in 'platform/android/java/app/config.gradle#minSdk'
+static const int OPENGL_MIN_SDK_VERSION = 21; // Should match the value in 'platform/android/java/app/config.gradle#minSdk'
 static const int VULKAN_MIN_SDK_VERSION = 24;
 static const int DEFAULT_TARGET_SDK_VERSION = 32; // Should match the value in 'platform/android/java/app/config.gradle#targetSdk'
 
@@ -1706,7 +1706,7 @@ void EditorExportPlatformAndroid::get_export_options(List<ExportOption> *r_optio
 	r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "gradle_build/export_format", PROPERTY_HINT_ENUM, "Export APK,Export AAB"), EXPORT_FORMAT_APK));
 	// Using String instead of int to default to an empty string (no override) with placeholder for instructions (see GH-62465).
 	// This implies doing validation that the string is a proper int.
-	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "gradle_build/min_sdk", PROPERTY_HINT_PLACEHOLDER_TEXT, vformat("%d (default)", DEFAULT_MIN_SDK_VERSION)), ""));
+	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "gradle_build/min_sdk", PROPERTY_HINT_PLACEHOLDER_TEXT, vformat("%d (default)", VULKAN_MIN_SDK_VERSION)), ""));
 	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "gradle_build/target_sdk", PROPERTY_HINT_PLACEHOLDER_TEXT, vformat("%d (default)", DEFAULT_TARGET_SDK_VERSION)), ""));
 
 	Vector<PluginConfigAndroid> plugins_configs = get_plugins();
@@ -2337,7 +2337,7 @@ bool EditorExportPlatformAndroid::has_valid_project_configuration(const Ref<Edit
 
 	// Check the min sdk version.
 	String min_sdk_str = p_preset->get("gradle_build/min_sdk");
-	int min_sdk_int = DEFAULT_MIN_SDK_VERSION;
+	int min_sdk_int = VULKAN_MIN_SDK_VERSION;
 	if (!min_sdk_str.is_empty()) { // Empty means no override, nothing to do.
 		if (!gradle_build_enabled) {
 			valid = false;
@@ -2350,9 +2350,9 @@ bool EditorExportPlatformAndroid::has_valid_project_configuration(const Ref<Edit
 			err += "\n";
 		} else {
 			min_sdk_int = min_sdk_str.to_int();
-			if (min_sdk_int < DEFAULT_MIN_SDK_VERSION) {
+			if (min_sdk_int < OPENGL_MIN_SDK_VERSION) {
 				valid = false;
-				err += vformat(TTR("\"Min SDK\" cannot be lower than %d, which is the version needed by the Godot library."), DEFAULT_MIN_SDK_VERSION);
+				err += vformat(TTR("\"Min SDK\" cannot be lower than %d, which is the version needed by the Godot library."), OPENGL_MIN_SDK_VERSION);
 				err += "\n";
 			}
 		}
@@ -2808,7 +2808,7 @@ Error EditorExportPlatformAndroid::export_project_helper(const Ref<EditorExportP
 		String version_name = p_preset->get("version/name");
 		String min_sdk_version = p_preset->get("gradle_build/min_sdk");
 		if (!min_sdk_version.is_valid_int()) {
-			min_sdk_version = itos(DEFAULT_MIN_SDK_VERSION);
+			min_sdk_version = itos(VULKAN_MIN_SDK_VERSION);
 		}
 		String target_sdk_version = p_preset->get("gradle_build/target_sdk");
 		if (!target_sdk_version.is_valid_int()) {

servers/rendering_server.cpp

@@ -2856,8 +2856,8 @@ RenderingServer::RenderingServer() {
 }
 
 void RenderingServer::init() {
-	GLOBAL_DEF_RST("rendering/textures/vram_compression/import_s3tc_bptc", OS::get_singleton()->get_preferred_texture_format() == OS::PREFERRED_TEXTURE_FORMAT_S3TC_BPTC);
-	GLOBAL_DEF_RST("rendering/textures/vram_compression/import_etc2_astc", OS::get_singleton()->get_preferred_texture_format() == OS::PREFERRED_TEXTURE_FORMAT_ETC2_ASTC);
+	GLOBAL_DEF_RST_BASIC("rendering/textures/vram_compression/import_s3tc_bptc", OS::get_singleton()->get_preferred_texture_format() == OS::PREFERRED_TEXTURE_FORMAT_S3TC_BPTC);
+	GLOBAL_DEF_RST_BASIC("rendering/textures/vram_compression/import_etc2_astc", OS::get_singleton()->get_preferred_texture_format() == OS::PREFERRED_TEXTURE_FORMAT_ETC2_ASTC);
 
 	GLOBAL_DEF("rendering/textures/lossless_compression/force_png", false);